But it’s a natural state of existence to exist within a broader, hostile context.

No it's not. A commune within a communist society would not at all exist within a hostile context but in one that nurtures it. Likewise a billionaire's corporation like Bezos' amazon dot com does not exist in a naturally hostile context under capitalism, it exists in a context that literally would not allow it to fail, propping it up at all costs. The banks that should have gone under and been utterly annihilated in 2008 were instead propped up and rewarded for their complete failure and sheer incompetence to the extent that mass amounts of wealth were siphoned away from working class to keep them afloat.

Civilization, at all levels, has always been that. Competition is everywhere.

Civilization at all levels has always required profound amounts of cooperation to come into being, to continue to exist, and to thrive. Civilization exists only because of cooperation, not because of competition. Competition has always existed too, but has been more of a hindrance than a benefit to civilization and certainly not a requirement like cooperation is. The cult-like worship of competition is something that the capitalists have fostered and spread for the obvious reason that widespread belief in this lie is beneficial to them. I would urge you not to fall for a very obvious and simple-minded ploy.

If a system requires nothing else to be competing with it, in order to work, then it’s not viable.

Gibberish.